iOS webView全屏

针对刘海屏的设置

if #available(iOS 11.0, *) {
    web.scrollView.contentInsetAdjustmentBehavior = .never
} else {
            // Fallback on earlier versions
}

import UIKit
import WebKit
class HomeBannerClickController: BaseController {
    
    var str = ""
    
    // MARK: - Properties
    private lazy var web: WKWebView = {
        var webView = WKWebView()
        //以下代码适配大小 var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width'); document.getElementsByTagName('head')[0].appendChild(meta); var imgs = document.getElementsByTagName('img');for (var i in imgs){imgs[i].style.maxWidth='100%';imgs[i].style.height='auto';}
        let jScript = ""
        let wkUScript = WKUserScript(source: jScript, injectionTime: .atDocumentEnd, forMainFrameOnly: true)
        let wkUController = WKUserContentController()
        wkUController.addUserScript(wkUScript)
        let wkWebConfig = WKWebViewConfiguration()
        wkWebConfig.userContentController = wkUController
        wkWebConfig.userContentController.add(self, name: "callbackHandler")
        webView = WKWebView(frame: CGRect.zero, configuration: wkWebConfig)

        webView.backgroundColor = UIColor.white
        return webView
    }()
    private lazy var progressView: UIProgressView = UIProgressView()
    
    // MARK: - View LifeCycle
    override func loadView() {
        super.loadView()
        
        self.view.addSubview(web)
        self.view.addSubview(progressView)
    }
    override func viewDidLoad() {
        super.viewDidLoad()
        if #available(iOS 11.0, *) {
            web.scrollView.contentInsetAdjustmentBehavior = .never
        } else {
            // Fallback on earlier versions
        }
        web.addObserver(self, forKeyPath:"estimatedProgress", options: NSKeyValueObservingOptions.new, context:nil)
        web.navigationDelegate = self
    
        /// NetWork
        self.request()
        
    }
    deinit {
        web.removeObserver(self, forKeyPath:"estimatedProgress")
        web.navigationDelegate = nil
    }
    
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        
        web.snp.makeConstraints { (make) in
            make.left.top.right.equalToSuperview()
            if #available(iOS 11.0, *) {
                make.bottom.equalToSuperview()
            } else {
                make.bottom.equalToSuperview()
            }
        }
        progressView.snp.makeConstraints { (make) in
            make.left.top.right.equalTo(web)
            make.height.equalTo(2)
        }
        progressView.tintColor = UIColor.init(red: 245/255, green: 77/255, blue: 117/255, alpha: 1)
        progressView.isHidden = true
        
    }
    // MARK: - Events
    
    // MARK: - Model
    let a = UserDefaultsManager_CN.queryData(Defaults_User_Token)
    // MARK: - NetWork
    func request() {
        if str == "" {
            
        } else {
            let url = URL(string: self.str)
            let request = URLRequest(url: url!)
            web.load(request)
        }
        
    }
}

// MARK: - WKNavigationDelegate
extension HomeBannerClickController: WKNavigationDelegate, WKScriptMessageHandler {
    override func observeValue(forKeyPath keyPath:String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        
        // 加载进度
        if keyPath == "estimatedProgress" {
            let newprogress = change?[.newKey]!as! Double
            let oldprogress = change?[.oldKey]as? Double ?? 0.0
            
            //不要让进度条倒着走...有时候goback会出现这种情况
            if newprogress < oldprogress {
                return
            }
            if newprogress == 1 {
                progressView.isHidden = true
                progressView.setProgress(0, animated:false)
            } else {
                progressView.isHidden = false
                progressView.setProgress(Float(newprogress), animated:true)
            }
        }
        
    }
    
    func webView(_ webView:WKWebView, didFinish navigation: WKNavigation!) {
        progressView.isHidden = true
        progressView.setProgress(0, animated:false)
        
    }
    
    func webView(_ webView:WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
        progressView.isHidden = true
        progressView.setProgress(0, animated:false)
        
    }
    /// WKScriptMessageHandler
    func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
        NJLog(message: message.body)
        //        var info = message.body as! Dictionary<String, Any>
        //        NJLog(message: message.name)
        //        NJLog(message: message.frameInfo.request.url?.absoluteString)
        if (message.name == "callbackHandler") {
            NJLog(message: "JavaScript is sending a message \(message.body)")
            let info = message.body as! Dictionary<String, Any>
            let type = info["type"]! as! String
            if type == "address" {
                // 收货地址
                let con = MyShouhuoAddressController()
                self.navigationController?.pushViewController(con, animated: true)
            } else if type == "store-info" {
                // 门店资料
                let con = MyInfoStoreDataController()
                con.navigationItem.title = "门店资料"
                self.navigationController?.pushViewController(con, animated: true)
            } else if type == "order" {
                let order_token = info["order_token"]! as! String
                let surprise_type = info["surprise_type"]! as! String
                NJLog(message: order_token)
                NJLog(message: surprise_type)
                
                let con = OrderConfirmViewController()
                con.hidesBottomBarWhenPushed = true
                con.order_token = order_token
                con.surprise_type = "\(surprise_type)"
                self.navigationController?.pushViewController(con, animated: true)
            }
        }
    }
    
}